Insulation Type

About Men's First Ascent®

Men's First Ascent® clothing thrives in harsh mountain environments. From waterproof, breathable shell jackets to micro-quilted down jackets and technical midlayer fleece, each piece in the First Ascent® selection is designed to provide comfort and warmth in the outdoor elements. Slim, athletic styling minimizes bulk when worn as part of a technical layering system.

The ultimate protection for the most extreme conditions at the highest altitudes. This is what our guides wear on Everest on summit day. Lightweight, super-durable CORDURA® shell is waterproof/breathable nylon. Insulated with superior, moisture-resistant, 800 fill StormDown™ powered by DownTek™....

Our First Ascent guide team built these insulated alpine pants for mountaineering in cold conditions. They'll keep you warm at base camp or on the final push to the summit. Lightweight, compressible ripstop nylon shell packs easily, and the ultra-warm...